package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnume;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/*
* 集中处理所有异常
* */
// 处理那些控制器的异常
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
@Slf4j // lombok 中日志
public class GulimallExceptionControllerAdvice {

    // 公共的异常处理
    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable throwable) {
        return R.error(BizCodeEnume.UNKNOW_EXCEPTION.getCode(),BizCodeEnume.UNKNOW_EXCEPTION.getMsg());
    }

    // 数据校验异常
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e) {
        log.error("数据校验出席问题{},异常类型{}",e.getMessage(),e.getClass());
        BindingResult bindingResult = e.getBindingResult();
        Map<String,String> map = new HashMap<>();
        bindingResult.getFieldErrors().forEach(item->{
            String field = item.getField();
            String defaultMessage = item.getDefaultMessage();
            map.put(field,defaultMessage);
        });
        return R.error(BizCodeEnume.VALID_EXCEPTION.getCode(),BizCodeEnume.VALID_EXCEPTION.getMsg()).put("data",map);
    }


}
